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An analyzer for determining helium-4 in the parts-per-billion range
An improved analyzer for determining helium-4 in parts-per-billion range
True flammable gas detecting system
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Published Year
1980-1989 (3) *
Subject
Gas detectors (3) *
Helium--Isotopes--Analysis (2)
Flammable gases (1)
Mine gases (1)
Author
Holland, Philip W. (2)
Chilton, J. E. (1)
Kubala, T. E. (1)
Seitz, Charles A. (1)
